diff --git a/modules/invoiceOut/back/methods/invoiceOut/specs/transferinvoice.spec.js b/modules/invoiceOut/back/methods/invoiceOut/specs/transferinvoice.spec.js
index 11575999a..eaaef3e26 100644
--- a/modules/invoiceOut/back/methods/invoiceOut/specs/transferinvoice.spec.js
+++ b/modules/invoiceOut/back/methods/invoiceOut/specs/transferinvoice.spec.js
@@ -17,6 +17,7 @@ describe('InvoiceOut transferInvoice()', () => {
         spyOn(LoopBackContext, 'getCurrentContext').and.returnValue({
             active: activeCtx
         });
+        spyOn(models.InvoiceOut, 'makePdfAndNotify');
     });
 
     it('should return the id of the created issued invoice', async() => {
diff --git a/modules/ticket/back/methods/ticket/invoiceTicketsAndPdf.js b/modules/ticket/back/methods/ticket/invoiceTicketsAndPdf.js
index 5529a3ae3..2211eb50b 100644
--- a/modules/ticket/back/methods/ticket/invoiceTicketsAndPdf.js
+++ b/modules/ticket/back/methods/ticket/invoiceTicketsAndPdf.js
@@ -28,12 +28,8 @@ module.exports = function(Self) {
     });
 
     Self.invoiceTicketsAndPdf = async(ctx, ticketsIds, invoiceCorrection, options) => {
-        let invoiceIds = null;
-
-        invoiceIds = await Self.invoiceTickets(ctx, ticketsIds, invoiceCorrection, options);
-        if (!invoiceIds) return [];
-        if (!options.transaction)
-            await Self.app.models.InvoiceOut.makePdfList(ctx, invoiceIds, null, options);
+        const invoiceIds = await Self.invoiceTickets(ctx, ticketsIds, invoiceCorrection, options);
+        await Self.app.models.InvoiceOut.makePdfList(ctx, invoiceIds, null, options);
         return invoiceIds;
     };
 };